The Uncertainty Principle says that "the more precisely the position of a particle is determined, the less precisely the momentum is known in this instant, and vice versa"
It is impossible to know both at the same time with exact certainty
Uncertainty Principle:
the uncertainty principle states that the position and velocity cannot both be measured,exactly, at the same time (actually pairs of position, energy and time)
uncertainty principle derives from the measurement problem, the intimate connection between the wave and particle nature of quantum objects
the change in a velocity of a particle becomes more ill defined as the wave function is confined to a smaller region
It is impossible to know both at the same time with exact certainty
Uncertainty Principle:
Links
http://www.halexandria.org/dward159.htm
http://www.thebigview.com/spacetime/uncertainty.html
http://www.answers.com/topic/uncertainty-principlehttp://science.howstuffworks.com/quantum-suicide2.htm
http://webs.morningside.edu/slaven/physics/uncertainty/uncertainty6.html
http://jersey.uoregon.edu/~imamura/122/lecture-6/hup.html